Yes, probe sequences for all GeneChip® probe arrays are available as an independent databank in the NetAffx™ Analysis Center. Query these databanks by probe set ID to search for probe sequences of interest. You may also "link" to this information from the Target or Sub-cluster databanks in the Analysis Center. The Download Center has compressed (*.zip) files of probe sequences to make it convenient for you to perform bulk downloads, such as all the probe sequences for a probe array of interest (for example, the HG-U133A array).